Mixed electrolyte battery

a battery and electrolyte technology, applied in the field of battery electrolytes and battery electrolytes, can solve the problems of mercury oxide toxicity, poor power-to-weight ratio of commonly used zn/c batteries, and even more problems

a battery and electrolyte technology, applied in the field of battery electrolytes and battery electrolytes, can solve the problems of mercury oxide toxicity, poor power-to-weight ratio of commonly used zn/c batteries, and even more problems

US7560189B2Inactive Publication Date: 2009-07-14ITI SCOTLAND
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  • Mixed electrolyte battery
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Embodiment Construction

[0019]The inventors have discovered that a battery may comprise an electrolyte that contacts the anode and includes a redox pair formed by a first element and a second element, wherein the battery is charged at a voltage sufficient to plate the first element at the anode, and wherein the voltage is insufficient to plate the second element on the anode when the second element is present at the anode. Thus, a secondary battery may comprising a mixed electrolyte that includes a redox pair formed by a first element and a second element.

[0020]As used herein, the term “first element” refers to a chemical element that may be in ionic form as well as in non-ionic form. For example, a preferred first element is zinc, which may be present as metallic (e.g., plated) zinc as well as ionic zinc (e.g., as Zn2+ in a salt with an anion of an acid). Similarly, the term “second element” refers to a chemical element that may be in ionic form as well as in non-ionic form. For example, a preferred secon...

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Abstract

A battery (100B) comprises an electrolyte in which a first element forms a redox pair with a second element, wherein the battery (100B) is charged at a voltage sufficient to plate the first element at the anode (122B) and wherein the voltage is insufficient to plate the second element on the anode (122B). Preferred batteries include secondary batteries comprising a mixed electrolyte that includes a redox pair formed by a first element and a second element.

Description

FIELD OF THE INVENTION[0001]The field of the invention is batteries and battery electrolytes.BACKGROUND OF THE INVENTION[0002]Many types of batteries and other power cells are known, based upon a relatively wide range of electrical couples, and among the most popular electrical couples are those containing zinc.[0003]For example, zinc is frequently employed in primary batteries. Such batteries are typically found in many simple flashlight batteries to provide a relatively inexpensive and reliable power source. Although manufacture of Zn / C batteries is typically simple and poses only relatively little environmental impact, various disadvantages of Zn / C batteries exist. Among other things, the ratio of power to weight in commonly used Zn / C batteries is relatively poor.[0004]To improve the power to weight ratio, alternative coupling partners for zinc may be utilized. Among other metal oxides, mercury oxide or silver oxide have been employed to manufacture primary batteries with signifi...

Claims

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Application Information

Patent Timeline
14 Jul 2009
Publication
US7560189B2
IPC
H01M4/58; H01M4/42; H01M6/04; H01M4/36; H01M4/38; H01M10/36; H01M50/426
CPC
H01M4/368; H01M4/38; H01M10/36; H01M6/045; H01M2/1653; H01M2300/0085; H01M2300/0005; Y02E60/10
Inventors
CLARKE, ROBERT LEWIS; DOUGHERTY, BRIAN